| Abbreviation | Definition |
|---|---|
| GERA | Gender and Economic Reforms in Africa |
| GFSA | Gun Free South Africa |
| GHASA | Guest House Accommodation of South Africa |
| GHTA | Give A Heart To Africa |
| GIA | Gemological Institute of Africa |
| GIGGA | Governing Inclusive Green Growth in Africa |
| GILLBT | Ghana Institute of Linguistics, Literacy, and Bible Translation |
| GIRAF | Geoscience InfoRmation AFrica |
| GISN | Global Influenza Surveillance Network |
| GISSA | Geo Information Society of South Africa |
| GKG | Gaza Kruger Gonarezhou |
| GLECS | Groupe Linguistique d'Études Chamito-Sémitique |
| GMAP | Global Malaria Action Plan |
| GNAAS | Ghana National Association of Adventist Students |
| GNDP | Ghana National Drugs Program |
| GNU | South African Government of National Unity |
| GODI | Ghana Open Data Initiative |
| GOSA | Gun Owners of South Africa |
| GPSA | Green Party of South Africa |
| GRA | Genootskap van Regte Afrikaners |